While tuning a guitar, you realize one of the strings is not the right thickness. The pitch needs to be higher in order for the guitar to be tuned properly, so you replace the string with the correct version. Thickness is not the only thing that has an effect on pitch. How tightly the strings are stretched is also a factor. This is why guitar strings are attached to knobs that can be tightened or loosened. If, after replacing the string, the pitch is a little too high, how should you turn the knob to make it right?

A. You should turn first one way, then the other.

B. You should turn the knob to loosen the string.

C. You should turn the knob to loosen the string.

D. You should turn the knob to loosen the string.

Answer:

- Hypothesis: thyroxine gene is responsive to low temperatures, thereby its transcript level is higher in cold climates

- Subjects of study: gene expression data collected from individuals from countries with different climates  

- Experiment: to determine thyroxin gene expression level by Real-Time PCR (RT-PCR) in individuals living in cold climates (e.g., Iceland) versus individuals living in warmer climates (e.g., Puerto Rico)

- Independent variable: temperature

- Dependent variable: thyroxin transcript level  

- N sample: 500 individuals of each population  

- Control group: individuals living in the same climate conditions but from different countries. It can be done by collecting gene expression data from individuals living in another country. For example, both Fairbanks (Alaska) in the USA and Reykjavik in Iceland are at 64 degrees N latitude, and thereby these cities have similar climates

- Constant variable: all data collected from individuals of adult age (age range: 20-30 years)  

Explanation:

The scientific method is a sequential process that consists of making hypotheses in order to explain observations from the real world, make predictions based on the working hypotheses, carrying out experiments based on those predictions, test the predictions and draw conclusions based on the results obtained. In an experiment, the independent variable isn't changed by the other variables, while the dependent variable is the variable being measured in the experiment. A constant variable does not change during the experiment. Moreover, a control group is a particular group to which comparisons are made during the experiment (the control group isn't exposed to the independent variable, and therefore any change in the experimental groups can be compared with the control). In this case, it is expected to measure thyroxine expression levels in 500 individuals from each country by RT-PCR (RT-PCR technique is used to measure the amount of mRNA of a target gene of interest). Subsequently, it is possible to determine if the differences in the thyroxin gene expression levels between populations (i.e., individuals living in Iceland vs individuals living in Puerto Rico) are statistically significant to confirm that thyroxin gene activity is increased in response to cold exposure. Finally, the control group can be used to determine if observed differences in gene expression are irrefutably correlated with cold conditions.

A. Inheritance of traits

Thus, option A is correct.

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Answer:

small fishes--tuna fish--dead animal material---crabs

Explanation:

follow the arrows from small fishes to crabs

Answer:

Answer is below

Explanation:

Small fish ---> Tuna Fish ---> Dead Animal Material ---> Crabs

This shows the path specifically followed from the small fish to the crabs

Answer:

a transgenic copy of the gene C is sufficient to restore normal eye development

Explanation:

In genetics, there are diverse approaches to determining a gene's function. For example, it is possible to use a complementation test to determine loss-of-function recessive mutations when it is unknown if such mutations fall in the same or in different genes. Similarly to the generation of loss-of-function phenotypes, it is possible to insert a gene and thus produce a gain-of-function mutation that restores normal gene function (i.e., to restore the wild phenotype). Moreover, transgenic organisms refer to genetic engineering techniques by which any foreign or modified gene is inserted in the genome of an organism, which can also be used to study gene function. In this case, the restoration of the normal phenotype (wild-type eyes) is associated with the expression of the transgenic gene C, thereby evidencing that the gene C is required for normal eye development. In the last years, transgenic models have shed light on developmental pathways and on gene function.

Answer:

anwser is

Answer:

1. A penguin protects its chick from seagulls*

2. Data collected from a controlled experiment that has been reproduced in several different labs

3. Helping individuals find mates.

4. Surround prey

5. Data showing that only distantly related individuals are most likely to perform altruistic behaviors in order to protect each other

Explanation:

100% Group Behavior Quick Check

Good luck! ♡

The piece of evidence which would best support the argument for kin selection as a mechanism for the evolution of altruistic  behavior is: A. a penguin protects its chick from seagulls.

Altruism can be defined as a phenomenon in which a living organism promote another organism's welfare, especially at its own detriment or disadvantage.

Hence, altruism is an act in which a living organism show selfness and concern for another organism's predicament, even at a risk or cost to itself.

In Evolutionary biology, a living organism is considered to be altruistic  in nature, if its behavior is beneficial to other living organisms.

Based on kin selection, a living organism is considered to behave altruistically when its behavior is beneficial to organisms in its family or organisms that are directly related to it.

For example, a penguin which protects its chick (offspring) from seagulls best support the argument for kin selection as a mechanism for the evolution of altruistic  behavior

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Answer:

The correct answer is - C. It has a larger ratio of surface area to volume.

Explanation:

In cell B, the ratio of surface area to volume is larger in comparison to cell A. The surface area to volume ratio can be understood as it is the size of surface area that the volume of a particular substance can move in or out of the cell, in a unit of time.

Thus the larger the ratio of surface area to volume faster the diffusion rate of nutrients will be as the surface area is a square measurement and volume is cubed so the surface area increases faster than volume.

Answer:

ATP releases energy (ATP + H2O --> ADP + P + energy) and in order for things like active transport to happen ATP is required.

Answer:

D

Explanation:

that is the answer 101010101010101001

Answer:

helping individuals find mates.

Explanation:

took test

The correct answer is option d helping individuals find mates.

We can begin the solution for this one with a method of elimination.

Herd conduct is the conduct of people in a set appearing together without centralized direction. Herd conduct happens in animals in herds, packs, chook flocks, fish faculties, and so on, in addition to in humans.

Thus it is clear that the option that helps individuals find mates is the correct answer.

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Answer:

Cultivation of crops and tillage practices.

Explanation:

Farming of crops and tillage practices on the grasslands depleted grassland that are present across North America because the lands are converted and used for the production of food crops in order to fulfill the feed the existing population. More and more land is converted from grassland to the cultivation of crops that leads to lower area for the grazing of animals which results in decrease population of animals such as sheep, goat and cow etc which depends n these grazing regions for food.

Answer:

Kitabın Yazarı:Şermin YaşarKitap Türü:Öykü/HikayeYayınevi:Doğan KitapçılıkYayınlandığı Yıl:2019 (19-10-2019)Sayfa Sayısı:196ISBN:9786050966534Kitap Puanı:8 / 10 | Yorum: 22

Explanation:

Answer:i would hink it was d cause you can see the graph and what happening and there ends up to grow a tree at the end

Explanation:

pls mark brainliest

Answer:

A gene mutation

Explanation:

DNA nucleotide sequence is unique

Answer:

Here's a paragraph that you can add !

Explanation:

When greenhouse gases capture more solar radiation, the oceans consume more heat, resulting in higher sea surface temperatures and increasing sea level. Changes in water temperatures and tides caused by climate change will cause changes in global climate patterns.

Answer:

the answer your looking for is number 3

Answernuber 3

Explanation:

Answer:

b) is the the answer

Explanation:

hope it helps

Answer:

first choice: 25%

Explanation:

when crossing Aa x aa, there is a 25% chance that the outcome will be Aa, giving the resulting cattle offspring horns. Hope this helps!

what are these changes?

is it the growth or?

Answer:

Viruses are Non- living they can't keep themselves in a stable state, they don't grow, and they can't make their own energy. Antibiotics won't help, and their side effects could cause harm. Because flu is a viral illness, antibiotics won't help to treat it.

Explanation:

Answer:

i think its behavioral

Explanation:

Answer:

The answer would be Behavioral Isolation.

Explanation:

I did the Connections Academy Quick Check and it said it was correct.

Answer:

Cloning technology

Explanation:

With cloning technology we can replicate and combine different genes to study, save lives, and create new species

Answer:

Your answer should be A

Answer:Like a brick wall, your body is composed of basic building blocks, and the building blocks of your body are cells.For example, epithelial cells protect the outside surface of the body as part of the skin and cover the organs and body cavities within. Bone cells build up bones to provide support for the body.

Explanation:

wrote an essay on it

Answer:

c

Explanation:

Once an environment is over its carrying capacity food and resource becomes scarce so some of the species may die off

Answer:

B:  Growth and immigration rate is greater then death and emigration rate

Explanation:

Got it right

Answer:

B

Explanation:

Or  - radiative zone, convection zone, core

Sun's atmosphere consists photosphere, chromosphere, and corona. Hence option d is correct.

Sun is divided into two parts internal sun and atmosphere. In sun's atmosphere, it consists photosphere- the visible surface of the sun,

chromosphere- it is the transition state between the photosphere and corona.

The outermost hot shell of the atmosphere is the corona, these there layers males the sun's atmosphere.

These three layers make the sun's atmosphere apart from its internal structure, core, radiation zone, and convection zone these are three interior layers of the sun.

Therefore option d corona, chromosphere, and photosphere are correct.

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Answer:

an organism is any living thing..including ants...